Evaluation of mechanical properties of magnetic materials using a non-destructive method

Author

Yang, David X. ; Kankolenski, Kevin P. ; Hua, Susan Z. ; Swartzendruber, L.J. ; Hicho, G.E. ; Chopra, Harsh Deep

Author_Institution

Dept. of Mech. & Aerosp. Eng., State Univ. of New York, Buffalo, NY, USA

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

2758

Lastpage

2760

Abstract

A magnetic-based nondestructive evaluation (NDE) method, which employs Barkhausen effect and measurement of hysteresis loops, is developed and used to correlate the magnetic and mechanical properties in ultra low carbon (ULC) steel. The NDE test equipment offers the capability to detect small deviations from linearity that occur in the stress-strain curve well below the 0.2% offset strain. Results show that three properties extracted from the experimental results, jumpsum and jumpsum rate (derived from the Barkhausen spectrum), and differential permeability (derived from the B-H loops), vary sensitively with small deformations well below the 0.2% offset strain in ULC steels; however coercivity is a slowly varying function of small applied strains

Keywords

Barkhausen effect; carbon steel; coercive force; ferromagnetic materials; magnetic hysteresis; magnetic permeability; nondestructive testing; stress-strain relations; Barkhausen effect; coercivity; differential permeability; hysteresis loop; jumpsum method; magnetic material; mechanical properties; nondestructive evaluation; stress-strain curve; ultra low carbon steel; Capacitive sensors; Linearity; Magnetic field induced strain; Magnetic hysteresis; Magnetic materials; Mechanical factors; Mechanical variables measurement; Permeability; Steel; Test equipment;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951298

Filename

951298